After unraveling the secrets of a stranger found on the surface of Kyiv, schoolteacher Ion joins the group of stalkers Condor—the legendary “Birds.” Three months later they encounter armed men who demand that Ion cooperate on unclear matters. Word by word, the dialogue turns into a shootout. In the skies, winged death with a mutated consciousness holds sway; a loyal comrade dies saving everyone from the worst fate—there’s no way back, only the mystery of a sealed Red Line metro passage ahead. And the guide to it is Albinа, a girl who knows more about Ion than he himself does.